Results 121 to 130 of about 1,626 (157)

Relaxation phenomena in water - n-methylmorpholin n-oxide binary mixtures

Journal of Molecular Liquids, 1988
Abstract Binary mixtures composed of water and N-methylmorpholin N-oxide (NMMNO) were studied in the concentration range 0.19 m to 26.5 m with shear and longitudinal waves. The dependence on temperature and molality of 1)the ultrasonic spectrum, 2)the real part of the complex mechanical impedance and 3)the ultrasonic velocity indicates equilibrium ...
openaire   +1 more source

Oxidation of Activated Halides to Aldehydes and Ketones by N-Methylmorpholine-N-oxide

Synthetic Communications, 1992
Abstract N-methylmorpholine-N-oxide (NMO) in acetonitrile solution will oxidise activated primary halides to aldehydes and secondary halides to ketones in good yields at room temperature.
William P. Griffith, Jenny M. Jolliffe, Steven V. Ley, Karsten F. Springhorn, Peter D. Tiffin   +4 more
openaire   +1 more source

Biogas Production from N-Methylmorpholine-N-oxide (NMMO) Pretreated Forest Residues

Applied Biochemistry and Biotechnology, 2014
Lignocellulosic biomass represents a great potential for biogas production. However, a suitable pretreatment is needed to improve their digestibility. This study investigates the effects of an organic solvent, N-Methylmorpholine-N-oxide (NMMO) at temperatures of 120 and 90 °C, NMMO concentrations of 75 and 85% and treatment times of 3 and 15 h on the ...
Solmaz, Aslanzadeh, Andreas, Berg, Mohammad J, Taherzadeh, Ilona, Sárvári Horváth   +3 more
openaire   +2 more sources

Vapor pressure over the system cellulose-N-methylmorpholine-N-oxide-water

Fibre Chemistry, 1987
The vapor pressure over solid cellulose-N-methylmorpholine-N-oxide-water systems and over liquid solutions is higher than that over the MMO·H2O solvent.
M. M. Iovleva, A. N. Sokira
openaire   +1 more source

Dissolution of cellulose in mixtures of N-methylmorpholine-N-oxide with amines of varied nature

Polymer Science U.S.S.R., 1986
Abstract Calorimetric and viscometric methods have been used to investigate the dissolving capacity in relation to cellulose of a system based on N-methylmorpholine-N-oxide with amine additives of a varied nature over the concentration range 1–15%. It has been established that the amines speed up the process of dissolution of cellulose and increase ...
L.K. Golova, O.Ye. Andreyeva, V.G. Kulichikhin, I.D. Zenkov, Yu.Ya. Belousov, S.P. Papkov   +5 more
openaire   +1 more source

Quantum-chemical study of the mechanism of dissolution of scleroproteins in N-methylmorpholine N-oxide

Russian Journal of General Chemistry, 2008
Complex formation of scleroprotein models with an N-methylmorpholine N-oxide solvent was studied by the semiempirical PM3 method.
E. S. Sashina, N. P. Novoselov, S. V. Toroshekova, V. E. Petrenko   +3 more
openaire   +1 more source

Cellulose solutions in N-methylmorpholine-N-oxide (NMMO) – degradation processes and stabilizers

Cellulose, 2002
Efficient stabilization of cellulose solutions in NMMO(1) against side reactions and their harmful effects meansprevention of both homolytic and heterolytic side reactions, which is mainlyaccomplished by trapping radicals, formaldehyde, andN-(methylene)iminium ions (5).
Thomas Rosenau, Antje Potthast, Immanuel Adorjan, Andreas Hofinger, Herbert Sixta, Heinrich Firgo, Paul Kosma   +6 more
openaire   +1 more source

Phase Transformations in a PAN–N-Methylmorpholine-N-Oxide–Water System

Colloid Journal, 2022
E. E. Palchikova, I. S. Makarov, M. V. Mironova, M. I. Vinogradov, L. K. Golova, V. G. Kulichikhin   +5 more
openaire   +1 more source

Unusual Role of N-Methylmorpholine N-Oxide in the Radical Polymerization of Acrylonitrile

Polymer Science, Series B, 2022
R. V. Toms, S. S. Medvedeva, A. Yu. Gerval’d, N. I. Prokopov, A. V. Plutalova, V. G. Kulichikhin, E. V. Chernikova   +6 more
openaire   +1 more source

Schematic phase diagram of the cellulose— N-methylmorpholine-N-oxide monohydrate system

Polymer Science U.S.S.R., 1989
Abstract Accumulated, published experimental data on the properties and special behavioural features of the cellulose-N-methylmorpholine-N-oxide monohydrate system, which contains information on phase transitions are discussed. On the basis of the accumulated data on the formation of a crystalline complex (inclusion compounds) of cellulose with a ...
openaire   +1 more source